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authorBin Meng <bmeng.cn@gmail.com>2017-08-15 22:41:52 -0700
committerBin Meng <bmeng.cn@gmail.com>2017-09-16 14:57:44 +0800
commit4ff333b7dd0f0d541225f87ebb2523beb7eefcad (patch)
treeef0df116b69a0d168aad46c3c030a29f20a628fd /arch/x86/include/asm
parentbb737ced7fc8c6d49554fb431971df87720b0e00 (diff)
x86: fsp: Add FSP_GRAPHICS_INFO_HOB
This adds a new HOB type for graphics information introduced in FSP spec 1.1. When graphics capability is included in FSP and enabled, FSP produces an FSP_GRAPHICS_INFO_HOB as described in the EFI PI specification which provides information about the graphics mode and framebuffer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/fsp/fsp_hob.h26
-rw-r--r--arch/x86/include/asm/fsp/fsp_support.h12
2 files changed, 38 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fsp/fsp_hob.h b/arch/x86/include/asm/fsp/fsp_hob.h
index 8ce665e512..244f86ef3d 100644
--- a/arch/x86/include/asm/fsp/fsp_hob.h
+++ b/arch/x86/include/asm/fsp/fsp_hob.h
@@ -127,6 +127,26 @@ struct hob_guid {
/* GUID specific data goes here */
};
+enum pixel_format {
+ pixel_rgbx_8bpc, /* RGB 8 bit per color */
+ pixel_bgrx_8bpc, /* BGR 8 bit per color */
+ pixel_bitmask,
+};
+
+struct __packed hob_graphics_info {
+ phys_addr_t fb_base; /* framebuffer base address */
+ u32 fb_size; /* framebuffer size */
+ u32 version;
+ u32 width;
+ u32 height;
+ enum pixel_format pixel_format;
+ u32 red_mask;
+ u32 green_mask;
+ u32 blue_mask;
+ u32 reserved_mask;
+ u32 pixels_per_scanline;
+};
+
/**
* get_next_hob() - return a pointer to the next HOB in the HOB list
*
@@ -250,4 +270,10 @@ static inline u16 get_guid_hob_data_size(const struct hob_header *hdr)
{ 0xb3, 0x16, 0x36, 0x35, 0x36, 0x67, 0xad, 0x44 } \
}
+#define FSP_GRAPHICS_INFO_HOB_GUID \
+ { \
+ 0x39f62cce, 0x6825, 0x4669, \
+ { 0xbb, 0x56, 0x54, 0x1a, 0xba, 0x75, 0x3a, 0x07 } \
+ }
+
#endif
diff --git a/arch/x86/include/asm/fsp/fsp_support.h b/arch/x86/include/asm/fsp/fsp_support.h
index 61d811f70e..97a50b0a73 100644
--- a/arch/x86/include/asm/fsp/fsp_support.h
+++ b/arch/x86/include/asm/fsp/fsp_support.h
@@ -191,6 +191,18 @@ void *fsp_get_nvs_data(const void *hob_list, u32 *len);
void *fsp_get_bootloader_tmp_mem(const void *hob_list, u32 *len);
/**
+ * This function retrieves graphics information.
+ *
+ * @hob_list: A HOB list pointer.
+ * @len: A pointer to the graphics info HOB length.
+ * If the HOB is located, the length will be updated.
+ *
+ * @retval NULL: Failed to find the graphics info HOB.
+ * @retval others: A pointer to struct hob_graphics_info.
+ */
+void *fsp_get_graphics_info(const void *hob_list, u32 *len);
+
+/**
* This function overrides the default configurations of FSP.
*
* @config: A pointer to the FSP configuration data structure